Invention Grant
US08697250B1 Selective oxidation of a modified MCrAlY composition loaded with high levels of ceramic acting as a barrier to specific oxide formations
有权
负载有高含量陶瓷的改性MCrAlY组合物作为特定氧化物形成屏障的选择性氧化
- Patent Title: Selective oxidation of a modified MCrAlY composition loaded with high levels of ceramic acting as a barrier to specific oxide formations
- Patent Title (中): 负载有高含量陶瓷的改性MCrAlY组合物作为特定氧化物形成屏障的选择性氧化
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Application No.: US13767486Application Date: 2013-02-14
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Publication No.: US08697250B1Publication Date: 2014-04-15
- Inventor: William Jarosinski
- Applicant: William Jarosinski
- Applicant Address: US CT North Haven
- Assignee: Praxair S.T. Technology, Inc.
- Current Assignee: Praxair S.T. Technology, Inc.
- Current Assignee Address: US CT North Haven
- Agent Nilay S. Dalal
- Main IPC: B32B15/04
- IPC: B32B15/04 ; B32B15/20 ; C23C4/06 ; C22C19/07 ; C22C19/00 ; C22C30/00 ; A01B29/00 ; F16C13/00
Abstract:
A composition based on a novel MCrAlY formulation is provided for the production of protective coatings. The specific combination of the constituents of the MCrAlY formulation advantageously allows significantly high loadings of ceramic (metal oxide) while still retaining the ability to selectively oxidize aluminum to form alumina scale, a property previously not attainable with conventional MCrAlY materials when loaded with ceramics at levels of 15-45 weight percent. The alumina scale in combination with the modified MCrAlY formulation act as a barrier to specific detrimental oxide formations. The compositions of the present invention can act as protective coatings for a wide array of applications.
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